Requesting the Check Enrollment Service (SDK)

After the SDK completes the device collection from your mobile application, and after the customer clicks the Buy button, you must make a back-end, server-to-server call to request the Enrollment Check service.

The Check Enrollment service verifies that the card is enrolled in a card authentication program. The merchant ID is included as part of the header, but these fields are required in the request:

billTo_city

billTo_country

billTo_email

billTo_firstName

billTo_lastName

billTo_postalCode

billTo_state

billTo_street1

card_accountNumber

card_cardType

card_expirationMonth

card_expirationYear

merchantID

merchantReference Code

payerAuthEnrollService_referenceID

payerAuthEnrollService_run

purchaseTotals_currency

purchaseTotals_grandTotalAmount

To reduce your issuer step-up authentication rates, you can send additional request data in order. It is best to send all available fields.

Use the enrollment check and card authorization services in the same request or in separate requests:

Same request:

Barclays

attempts to authorize the card if your customer is not enrolled in a payer authentication program. In this case, the field values that are required to prove that you attempted to check enrollment are passed automatically to the authorization service. If authentication is required, processing automatically stops.

Separate requests: Manually include the enrollment check result values (Enrollment Check response fields) in the authorization service request (Card Authorization request fields).

Be sure to include the following card-specific information in your authorization request:

For Visa, American Express, JCB, Diners Club, Discover, China UnionPay, and Elo, include the CAVV.

For Mastercard only, include the collection indicator and the AAV (also known as UCAF).

These fields are listed in this table.

Enrollment Check and Response Fields
Identifier	Enrollment Check Response Field	Card Authorization Request Field
E-commerce indicator	payerAuthEnrollReply_ commerceIndicator	ccAuthService_commerceIn dicator
Collection indicator	payerAuthEnrollReply_ucaf CollectionIndicator	ucaf_collectionIndicator
CAVV	payerAuthValidateReply_cavv	ccAuthService_cavv
AAV	payerAuthValidateReply_ucafAuthenticationData	ucaf_authenticationData
XID	payerAuthEnrollReply_xid and payerAuthValidateReply_xid	ccAuthService_xid
Result of the enrollment check for Asia, Middle East, and Africa Gateway	payerAuthEnrollReply_veresEnrolled
3-D Secure version	payerAuthEnrollReply_specificationVersion	ccAuthService_paSpecificationVersion
Directory server transaction ID (Not required for 3-D Secure 1.0.)	payerAuthEnrollReply_direc toryServerTransactionID	ccAuthService_directorySer verTransactionID